Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _GPIO_KEYS_H
3#define _GPIO_KEYS_H
4
5struct device;
6
7/**
8 * struct gpio_keys_button - configuration parameters
9 * @code: input event code (KEY_*, SW_*)
10 * @gpio: %-1 if this key does not support gpio
11 * @active_low: %true indicates that button is considered
12 * depressed when gpio is low
13 * @desc: label that will be attached to button's gpio
14 * @type: input event type (%EV_KEY, %EV_SW, %EV_ABS)
15 * @wakeup: configure the button as a wake-up source
16 * @wakeup_event_action: event action to trigger wakeup
17 * @debounce_interval: debounce ticks interval in msecs
18 * @can_disable: %true indicates that userspace is allowed to
19 * disable button via sysfs
20 * @value: axis value for %EV_ABS
21 * @irq: Irq number in case of interrupt keys
22 */
23struct gpio_keys_button {
24 unsigned int code;
25 int gpio;
26 int active_low;
27 const char *desc;
28 unsigned int type;
29 int wakeup;
30 int wakeup_event_action;
31 int debounce_interval;
32 bool can_disable;
33 int value;
34 unsigned int irq;
35};
36
37/**
38 * struct gpio_keys_platform_data - platform data for gpio_keys driver
39 * @buttons: pointer to array of &gpio_keys_button structures
40 * describing buttons attached to the device
41 * @nbuttons: number of elements in @buttons array
42 * @poll_interval: polling interval in msecs - for polling driver only
43 * @rep: enable input subsystem auto repeat
44 * @enable: platform hook for enabling the device
45 * @disable: platform hook for disabling the device
46 * @name: input device name
47 */
48struct gpio_keys_platform_data {
49 const struct gpio_keys_button *buttons;
50 int nbuttons;
51 unsigned int poll_interval;
52 unsigned int rep:1;
53 int (*enable)(struct device *dev);
54 void (*disable)(struct device *dev);
55 const char *name;
56};
57
58#endif